The find challenges the assumed distribution of whale populations in the area
The new population may represent a unique and rare subspecies, experts said
Whales sing to coordinate their behaviour, with each pod having a unique song
A unique whale song has revealed the presence of a previously unknown population of blue whales living in the north-western Indian Ocean, a study has reported.
US-led experts detected the song being sung in acoustic recordings taken at three locations: the Chagos Archipelago, Madagascar and Oman's Arabian Sea coast.
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According to the researchers, it had long been recognised that a unique population of blue whales lives in the Northern Indian Ocean.